Electronic Circuits and Tutorials
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Page 9 - Questions Answers with Multiple Choice
Electronics Quiz - Physics Quiz - Science Quiz
65. A sensor that changes resistance when
light is illuminates it is:
- photo impedance sensor
- photo resistor sensor
- photo current sensor
- photo voltage sensor
66. On Earth, hydrogen is mostly found in what?
- Water
- Dirt
- Air
- Metals
67. Which is the heaviest natural element?
- Bismuth
- Magnesium
- Aluminum
- Uranium
68. How long does it take for light from the Sun to reach the Earth?
- Eight minutes
- Eight hours
- Instantly
- Eight seconds
69. What portion of the AC cycle is converted to DC by a full-wave rectifier?
- 90 degrees
- 180 degrees
- 270 degrees
- 360 degrees
70. The inductive reactance of a transformer depends on
- Magnetic Flux
- Leakage Flux
- Electromotive Force
- Magnetomotive Force
71. The function of the starter for a dc motor is
- To increase field resistance
- To reduce armature resistance
- To limit the starting current
- To limit the starting voltage
72. The Moon does not fall to Earth because
- It is beyond the pull of Earth's gravity
- It is being pulled by the Sun and planets as well as by the Earth
- The net force on it is zero
- None of the above
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